To supplement my point that video games CAN teach violent tactics, here’s an example of a practice among FPS “camping”. Yes this is also taught in movies, but with games, you reiterate the same thing over and over – sniping people in a bottle neck from an angle they weren’t prepared for. “It certainly works in paintball” It’s not just “camping” though, it’s anticipating where the other guy is going to set up shop. Knowing that a melee weapon might not alert other members of the opposite faction that anything is out of the ordinary (the Assassin’s Creed franchise makes teaching this tactic a substantial portion of the game). No, I don’t think the average gamer is incited to go on a melee weapon rampage in the office/school, but if they were to do so, I think it’s safe to say they are a more “weaponized” version of themselves after playing 500 hours on an FPS with sprites programmed to behave more and more human.
[viewer discretion – depictions of death ‘R’ rating, it’s a scene from Saving Private Ryan] https://www.youtube.com/watch?feature=player_detailpage&v=bwBkQy9CpS0#t=1080s
Don’t get me wrong, I think the benefits of video games far outweigh the detriments, but I’m not going to pretend that watching a violent movie, or immersing myself fully in a highly realistic video game where I happen to learn advanced combat tactics doesn’t have any effect on me at all…